Christmas light string controller with rotary switch



FIG. 1 is a perspective view of a Christmas light string controller with rotary switch showing my new design, wherein a rotary switch is arranged on the top portion of the controller;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a Christmas light string controller with rotary switch, as shown and described. 